⚡ Aura & Rapid TTS Models|Sub-200ms Latency

Developer-First Text to Speech API for Lifelike AI Voices

Build next-generation voice applications, agents, and narrations with our high-speed Text to Speech API. Powered by Aura and Rapid models for ultra-low latency, emotional tone control, and 90+ languages.

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Flagship Engine
Aura & Rapid
Latency
< 200 ms TTFA
Supported Voices
1000+ Voices
Free Developer Tier
2,500 Credits/Mo
Capabilities & Use Cases

Built for Conversational AI, Voice Agents & Apps

Our text to speech api provides developer-grade infrastructure for real-time speech synthesis, emotional tone modulation, instant voice cloning, and deep multilingual coverage.

⚡

Sub-200ms Streaming

Stream real-time audio chunks with under 200ms Time-To-First-Audio (TTFA) using our /api/v1/tts/stream WebSocket and HTTP endpoints.

🎭

Aura Emotional Speech

Inject natural emotion tags like [cheerful], [friendly], [authoritative], [calm], or [curious] into your text payloads.

🗣️

Instant Voice Cloning

Create digital voice twins from audio samples for custom brand voices and personalized conversational agents (2 credits/character).

🌐

90+ Global & Indian Accents

Synthesize speech across 90+ languages with native articulation for English (US, UK, Indian), Hindi, Tamil, Telugu, Spanish, French, and German.

Text to Speech API Architecture Diagram - Sub-200ms Latency Audio Pipeline
Figure 1: High-level system architecture for real-time Text to Speech REST API streaming with Aura and Rapid voice models (<200ms TTFA).

High-Volume Applications Powered by our Text to Speech REST API

Interactive Voice Response (IVR) & Telecom

Integrate low-latency voice synthesis directly into phone systems, Twilio IVR flows, and customer support bots with transparent X-API-Key REST endpoints.

Real-time LLM & Conversational Voice Agents

Stream AI responses from OpenAI, Gemini, or Claude into audio within 200ms, enabling ultra-responsive human-like conversation for AI voice assistants.

Publishing, Podcasts & Audiobooks

Convert long-form articles, news posts, and book manuscripts into studio-quality MP3 audio files using our high-expressiveness aura-prime and aura-max models.

E-Learning & Accessibility Readers

Deliver multi-speaker dialogue and educational voiceovers with exact phonetic accuracy across global and Indian regional languages.

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Text-to-Speech Generator
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AI Voice Generator in 93 languages

Our AI voice generator supports 93 languages, just select the language accent and enter text in your language of choice.

🇺🇸English🇬🇧English🇮🇳English🇦🇺English🏴󠁧󠁢󠁳󠁣󠁴󠁿English🇮🇳Hindi🇮🇳Marathi🇮🇳Bengali🇮🇳Telugu🇮🇳Tamil🇵🇰Urdu🇮🇳Gujarati🇮🇳Kannada🇮🇳Malayalam🇮🇳Punjabi

AI Voice Emotions & Expressions

Bring your text to life with 120+ emotional expressions, laughs, breaths, and tones.

gigglechucklelaughsnickercackleguffawchortlebelly laughnervous laughhearty laughsighdeep breathgasppantheavy breathing

REST API Request Code Snippets

Copy the exact HTTP REST payload formatted for your selected model (aura-lite).

# Install: pip install requests
import requests

url = "https://yourvoic.com/api/v1/tts/generate"
headers = {
    "X-API-Key": "YOUR_API_KEY",
    "Content-Type": "application/json"
}
payload = {
    "text": "Welcome to YourVoic API. Experience high-performance text-to-speech synthesis.",
    "model": "aura-lite",  # Options: aura-lite, aura-prime, aura-max, rapid-flash, rapid-max
    "voice": "Peter",               # Aura voices: Peter, Kylie, Rahul, Deepika
    "language": "en-US",
    "format": "mp3"
}

response = requests.post(url, json=payload, headers=headers)

if response.status_code == 200:
    with open("speech.mp3", "wb") as f:
        f.write(response.content)
    print("Saved speech.mp3 successfully!")
else:
    print(f"Error {response.status_code}: {response.text}")

API Model Credit Rates

Exact credit rates per 1,000 characters based on model performance and quality.

Model IdentifierLatencyCredit Cost (per 1,000 Chars)Supported Voices & Languages
rapid-flashFastest (<200ms)3 credits18 languages, 62 voices
aura-liteFast5 credits90+ languages, 1000+ Aura voices
rapid-maxFast8 credits41 languages, 30 Aura voices
aura-primeMedium10 credits90+ languages, 1000+ Aura voices
aura-maxSlower15 credits90+ languages, 1000+ Aura voices

Supported Languages & Regional Models

Our TTS REST API supports over 90 languages. Explore regional tool pages:

API Subscription Plans & Monthly Credits

Official API Gateway subscription plans matching system billing console in USD ($) and INR (₹).

Free

$0 /month

2,500 credits/month

  • ✓ Basic TTS API access
  • ✓ 30 voice options
  • ✓ 55 languages
  • ✓ Standard support
  • ✓ API documentation
Plan includes:
  • ✓ 2 minutes of Text to Speech
  • ✓ 20 min (0.3 hrs) of Speech to Text
  • ✓ Create up to 2 API Keys
  • ✓ All Model Access
  • ✕ Custom Rate Limits
Get Free Key

Basic

$5.99 /month

30,000 credits/month

  • ✓ Everything in Free
  • ✓ Priority processing
  • ✓ Higher rate limits
  • ✓ Email support
  • ✓ Usage analytics
Plan includes:
  • ✓ 30 minutes of Text to Speech
  • ✓ 250 min (4.2 hrs) of Speech to Text
  • STT Cost: $1.43/hr
  • ✓ Create up to 5 API Keys
  • ✕ Rapid Flash Model
  • ✕ Aura Lite Model
  • ✕ Custom Rate Limits
Get Basic
SAVE 25% vs Basic

Starter

$15.99 /month

110,000 credits/month

  • ✓ voices: 100+ voices
  • ✓ quality: High quality audio
  • ✓ support: Email support
  • ✓ languages: 50+ languages
Plan includes:
  • ✓ 110 minutes of Text to Speech
  • ✓ 916 min (15.3 hrs) of Speech to Text
  • STT Cost: $1.09/hr
  • ✓ Create up to 10 API Keys
  • ✓ All Model Access
  • ✕ Custom Rate Limits
Get Starter
MOST POPULAR

Pro

$44.99 /month

400,000 credits/month

  • ✓ Everything in Basic
  • ✓ Custom voice cloning
  • ✓ Webhook notifications
  • ✓ Priority support
  • ✓ Advanced analytics
  • ✓ Custom integrations
Plan includes:
  • ✓ 400 minutes of Text to Speech
  • ✓ 3,333 min (55.5 hrs) of Speech to Text
  • STT Cost: $0.81/hr
  • ✓ Create up to 15 API Keys
  • ✓ All Model Access
  • ✓ Custom Rate Limits
Get Pro
SAVE 17% vs Pro

Enterprise

$139.99 /month

1,500,000 credits/month

  • ✓ Everything in Pro
  • ✓ Dedicated support
  • ✓ SLA guarantee
  • ✓ Custom deployment
  • ✓ Volume discounts
  • ✓ White-label options
Plan includes:
  • ✓ 1,500 minutes of Text to Speech
  • ✓ 12,500 min (208.3 hrs) of Speech to Text
  • STT Cost: $0.67/hr
  • ✓ Create up to 30 API Keys
  • ✓ All Model Access
  • ✓ Custom Rate Limits
Contact Sales

Ready to Start Building with our Voice API?

Check out our detailed API documentation, code walkthroughs, error reference codes, and authentication guidelines.

Frequently Asked Questions

Comprehensive technical reference for integrating our Text to Speech API.

Yes! YourVoic provides a free developer text to speech API tier that includes 2,500 credits per month on signup (no credit card required). You can generate speech in 90+ languages, test sample REST requests, and upgrade seamlessly as your API request volume grows.
Getting an API key is instant: (1) Register for a free developer account at YourVoic API console (yourvoic.com/api/user), (2) Navigate to the API Keys section, and (3) Click 'Create API Key'. Copy your key and pass it in the `X-API-Key` HTTP header with all REST or streaming requests.
YourVoic offers 5 specialized TTS models: (1) `rapid-flash` (fastest, 3 credits per 1,000 characters) for ultra-low latency real-time voice agents; (2) `aura-lite` (5 credits/1k chars) for fast conversational speech with 90+ languages; (3) `rapid-max` (8 credits/1k chars) for fast prosody; (4) `aura-prime` (10 credits/1k chars) for excellent studio quality; and (5) `aura-max` (15 credits/1k chars) for premium expressiveness across 1000+ Aura voices.
With our `rapid-flash` and `aura-lite` streaming endpoints (`/api/v1/tts/stream`), Time-To-First-Audio (TTFA) is under 200ms.
Aura models (`aura-lite`, `aura-prime`, `aura-max`) support 90+ languages including English (US, UK, Indian), Hindi, Spanish, French, German, Japanese, Bengali, Tamil, Telugu, Marathi, and Gujarati. Rapid models support 18 to 41 languages.
Single real-time API requests support up to 5,000 characters per call (ranging from 800 to 6,500 chars depending on tier), while Bulk Mode & Batch Processing endpoints support up to 20,000 characters per request for long-form document and audiobook synthesis.
Yes! Aura models support expression tags (such as `[cheerful]`, `[friendly]`, `[authoritative]`, `[calm]`, `[curious]`), while Rapid models offer direct `speed` and `pitch` controls.
Over 1000+ Aura voices (such as Peter, Kylie, Rahul, Deepika) and 62 Rapid voices are available across global and regional Indian languages.
Yes. Use our POST `/api/v1/tts/stream` endpoint for real-time audio chunk streaming.
We support `mp3`, `wav`, and linear PCM container formats.
To minimize latency: (1) Select the `rapid-flash` or `aura-lite` model, (2) Use the `/api/v1/tts/stream` streaming endpoint, and (3) Choose MP3 output format.
Yes. You can customize pronunciation via phonetic spelling or SSML `<phoneme>` tags in supported models.
We support native REST API HTTP requests in Python (`requests`, `aiohttp`), JavaScript / Node.js (`fetch`, `axios`), cURL, PHP, Go, Java, and Ruby.
You can test our interactive code playground on this page, explore Python and JavaScript quickstart guides at `/text-to-speech-api/python` and `/text-to-speech-api/javascript`, or view full docs at `/api/docs/overview`.
Yes! Enterprise, Ultra, and Scale plans include 99.9% Uptime SLA and dedicated account managers.